ETHERNET SYSTEM
First Claim
1. An Ethernet system comprising:
- An Ethernet central station comprising at least first and second Ethernet connectors, the first Ethernet connector comprising at least two pairs of contacts used by the Ethernet central station for Ethernet communication, the second Ethernet connector comprising at least two pairs of contacts used by the Ethernet central station for Ethernet communication;
at least one electrical supply;
at least one Ethernet end station comprising an Ethernet connector, the Ethernet connector comprising at least two pairs of contacts used by the Ethernet end station for Ethernet communication; and
circuitry for changing impedance between at least one of the contacts of one of the at least two pairs of contacts of the Ethernet connector of the Ethernet end station and at least one of the contacts of the other one of the at least two pairs of contacts of the Ethernet connector of the Ethernet end station.
1 Assignment
0 Petitions
Accused Products
Abstract
A communication system (17) for generating and monitoring data over pre-existing conductors (2A-2D) between associated pieces of networked computer equipment (3A-3D). The system includes a communication device (16) attached to the electronic equipment that transmits information to a central module (15) by impressing a low frequency signal on the pre-existing data lines of the remotely located equipment. A receiver (6) in the central module (15) monitors the low frequency data on the data lines to determine the transmitted information of the electronic equipment. The communication device may also be powered by a low current power signal from the central module (15). The power signal to the communication device may also be fluctuated to provide useful information. Relocation of the electronic equipment with attached communication device to another location on the network is detected immediately. This invention is particularly adapted to be used with an Ethernet communications link or equivalents thereof.
2 Citations
1 Claim
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1. An Ethernet system comprising:
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An Ethernet central station comprising at least first and second Ethernet connectors, the first Ethernet connector comprising at least two pairs of contacts used by the Ethernet central station for Ethernet communication, the second Ethernet connector comprising at least two pairs of contacts used by the Ethernet central station for Ethernet communication;
at least one electrical supply;at least one Ethernet end station comprising an Ethernet connector, the Ethernet connector comprising at least two pairs of contacts used by the Ethernet end station for Ethernet communication; and circuitry for changing impedance between at least one of the contacts of one of the at least two pairs of contacts of the Ethernet connector of the Ethernet end station and at least one of the contacts of the other one of the at least two pairs of contacts of the Ethernet connector of the Ethernet end station.
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Specification
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- Resources
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Current AssigneeChriMar Systems, Inc. (ChriMar Holding Company LLC)
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Original AssigneeChriMar Systems, Inc. (ChriMar Holding Company LLC)
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InventorsAustermann, John F. III, Cummings, Marshall B.
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current307/147
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CPC Class CodesH01R 2107/00 Four or more polesH01R 24/64 for high frequency, e.g. RJ 45H04B 2203/5445 Local networkH04B 2203/5458 Monitor sensor; Alarm systemsH04B 2203/5466 using three phases conductorsH04B 2203/547 via DC power distributionH04B 2203/5491 using filtering and bypassingH04B 2203/5495 having measurements and tes...H04B 3/54 Systems for transmission vi...H04L 1/24 Testing correct operationH04L 25/0278 Arrangements for impedance ...
